Take a look at Fred Miranda's B/W Workflow Pro at
http://www.fredmiranda.com/software. It's a Photoshop plugin for ver. 6, 7 and
CS (Win and Mac).
Also, here's a link to several threads on b/w conversion on the DPreview forum:
There are several good techniques with Photoshop. Here are two advanced
techniques that are my favorites:
http://www.adobe.com/digitalimag/ps_pro_primers.html This is John Paul
Caponigro's technique of creating individual layers from each color channel.
This works well. He has an action